Audio equipment these days not half complicated (7)
I believe the answer is:
headset
'audio equipment' is the definition.
(I've seen this before)
'these days not half complicated' is the wordplay.
'not half' indicates taking half.
'complicated' is an anagram indicator (a complex or confusing ordering of the letters).
'days' with half the letters taken is 'da'.
'these'+'da'='theseda'
'theseda' with letters rearranged gives 'HEADSET'.
(Other definitions for headset that I've seen before include "Combined earphones with microphone" , "Assistance for listener" , "Radio operator's equipt." , "Bicycle front bearing assembly" , "One covers the ears" .)